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El-Nablaway M, Rashed F, Taher ES, Atia GA, Foda T, Mohammed NA, Abdeen A, Abdo M, Hînda I, Imbrea AM, Taymour N, Ibrahim AM, Atwa AM, Ibrahim SF, Ramadan MM, Dinu S. Bioactive injectable mucoadhesive thermosensitive natural polymeric hydrogels for oral bone and periodontal regeneration. Front Bioeng Biotechnol 2024; 12:1384326. [PMID: 38863491 PMCID: PMC11166210 DOI: 10.3389/fbioe.2024.1384326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Accepted: 04/19/2024] [Indexed: 06/13/2024] Open
Abstract
Periodontitis is an inflammation-related condition, caused by an infectious microbiome and host defense that causes damage to periodontium. The natural processes of the mouth, like saliva production and eating, significantly diminish therapeutic medication residency in the region of periodontal disease. Furthermore, the complexity and diversity of pathological mechanisms make successful periodontitis treatment challenging. As a result, developing enhanced local drug delivery technologies and logical therapy procedures provides the foundation for effective periodontitis treatment. Being biocompatible, biodegradable, and easily administered to the periodontal tissues, hydrogels have sparked substantial an intense curiosity in the discipline of periodontal therapy. The primary objective of hydrogel research has changed in recent years to intelligent thermosensitive hydrogels, that involve local adjustable sol-gel transformations and regulate medication release in reaction to temperature, we present a thorough introduction to the creation and efficient construction of new intelligent thermosensitive hydrogels for periodontal regeneration. We also address cutting-edge smart hydrogel treatment options based on periodontitis pathophysiology. Furthermore, the problems and prospective study objectives are reviewed, with a focus on establishing effective hydrogel delivery methods and prospective clinical applications.
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Affiliation(s)
- Mohammad El-Nablaway
- Department of Medical Biochemistry, Faculty of Medicine, Mansoura University, Mansoura, Egypt
- Department of Basic Medical Sciences, College of Medicine, AlMaarefa University, Riyadh, Saudi Arabia
| | - Fatema Rashed
- Department of Basic Medical and Dental Sciences, Faculty of Dentistry, Zarqa University, Zarqa, Jordan
| | - Ehab S. Taher
- Department of Basic Medical and Dental Sciences, Faculty of Dentistry, Zarqa University, Zarqa, Jordan
| | - Gamal A. Atia
- Department of Oral Medicine, Periodontology, and Diagnosis, Faculty of Dentistry, Suez Canal University, Ismailia, Egypt
| | - Tarek Foda
- Oral Health Sciences Department, Temple University’s Kornberg School of Dentistry, Philadelphia, PA, United States
| | - Nourelhuda A. Mohammed
- Physiology and Biochemistry Department, Faculty of Medicine, Mutah University, Al Karak, Jordan
| | - Ahmed Abdeen
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Benha University, Toukh, Egypt
| | - Mohamed Abdo
- Department of Animal Histology and Anatomy, School of Veterinary Medicine, Badr University in Cairo (BUC), Cairo, Egypt
| | - Ioana Hînda
- Department of Biology, Faculty of Agriculture, University of Life Sciences “King Michael I” from Timișoara, Timișoara, Romania
| | - Ana-Maria Imbrea
- Department of Biotechnology, Faculty of Bioengineering of Animal Resources, University of Life Sciences “King Mihai I” from Timisoara, Timișoara, Romania
| | - Noha Taymour
- Department of Substitutive Dental Sciences, College of Dentistry, Imam Abdulrahman bin Faisal University, Dammam, Saudi Arabia
| | - Ateya M. Ibrahim
- Department of Administration and Nursing Education, College of Nursing, Prince Sattam bin Abdulaziz University, Al-Kharj, Saudi Arabia
- Department of Family and Community Health Nursing, Faculty of Nursing, Port-Said University, Port Said, Egypt
| | - Ahmed M. Atwa
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Egyptian Russian University, Cairo, Egypt
| | - Samah F. Ibrahim
- Department of Internal Medicine, College of Medicine, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Mahmoud M. Ramadan
- Department of Clinical Sciences, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - Stefania Dinu
- Department of Pedodontics, Faculty of Dental Medicine, Victor Babes, University of Medicine and Pharmacy Timisoara, Timisoara, Romania
- Pediatric Dentistry Research Center, Faculty of Dental Medicine, Victor Babes University of Medicine and Pharmacy Timisoara, Timisoara, Romania
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Quek J, Vizetto-Duarte C, Teoh SH, Choo Y. Towards Stem Cell Therapy for Critical-Sized Segmental Bone Defects: Current Trends and Challenges on the Path to Clinical Translation. J Funct Biomater 2024; 15:145. [PMID: 38921519 PMCID: PMC11205181 DOI: 10.3390/jfb15060145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 05/18/2024] [Accepted: 05/24/2024] [Indexed: 06/27/2024] Open
Abstract
The management and reconstruction of critical-sized segmental bone defects remain a major clinical challenge for orthopaedic clinicians and surgeons. In particular, regenerative medicine approaches that involve incorporating stem cells within tissue engineering scaffolds have great promise for fracture management. This narrative review focuses on the primary components of bone tissue engineering-stem cells, scaffolds, the microenvironment, and vascularisation-addressing current advances and translational and regulatory challenges in the current landscape of stem cell therapy for critical-sized bone defects. To comprehensively explore this research area and offer insights for future treatment options in orthopaedic surgery, we have examined the latest developments and advancements in bone tissue engineering, focusing on those of clinical relevance in recent years. Finally, we present a forward-looking perspective on using stem cells in bone tissue engineering for critical-sized segmental bone defects.
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Affiliation(s)
- Jolene Quek
- Developmental Biology and Regenerative Medicine Programme, Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 308232, Singapore; (J.Q.); (C.V.-D.)
| | - Catarina Vizetto-Duarte
- Developmental Biology and Regenerative Medicine Programme, Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 308232, Singapore; (J.Q.); (C.V.-D.)
| | - Swee Hin Teoh
- Centre for Advanced Medical Engineering, College of Materials Science and Engineering, Hunan University, Changsha 410012, China
| | - Yen Choo
- Developmental Biology and Regenerative Medicine Programme, Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 308232, Singapore; (J.Q.); (C.V.-D.)
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Huang D, Xu K, Huang X, Lin N, Ye Y, Lin S, Zhang J, Shao J, Chen S, Shi M, Zhou X, Lin P, Xue Y, Yu C, Yu X, Ye Z, Cheng K. Remotely Temporal Scheduled Macrophage Phenotypic Transition Enables Optimized Immunomodulatory Bone Regeneration. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2203680. [PMID: 36031402 DOI: 10.1002/smll.202203680] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Indexed: 06/15/2023]
Abstract
Precise timing of macrophage polarization plays a pivotal role in immunomodulation of tissue regeneration, yet most studies mainly focus on M2 macrophages for their anti-inflammatory and regenerative effects while the essential proinflammatory role of the M1 phenotype on the early inflammation stage is largely underestimated. Herein, a superparamagnetic hydrogel capable of timely controlling macrophage polarization is constructed by grafting superparamagnetic nanoparticles on collagen nanofibers. The magnetic responsive hydrogel network enables efficient polarization of encapsulated macrophage to the M2 phenotype through the podosome/Rho/ROCK mechanical pathway in response to static magnetic field (MF) as needed. Taking advantage of remote accessibility of magnetic field together with the superparamagnetic hydrogels, a temporal engineered M1 to M2 transition course preserving the essential role of M1 at the early stage of tissue healing, as well as enhancing the prohealing effect of M2 at the middle/late stages is established via delayed MF switch. Such precise timing of macrophage polarization matching the regenerative process of injured tissue eventually leads to optimized immunomodulatory bone healing in vivo. Overall, this study offers a remotely time-scheduled approach for macrophage polarization, which enables precise manipulation of inflammation progression during tissue healing.
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Affiliation(s)
- Donghua Huang
- Department of Orthopedic Surgery, The Second Affiliated Hospital Zhejiang University School of Medicine, Orthopedics Research Institute of Zhejiang University, Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou, Zhejiang Province, 310000, P. R. China
| | - Kaicheng Xu
- Department of Orthopedic Surgery, The Second Affiliated Hospital Zhejiang University School of Medicine, Orthopedics Research Institute of Zhejiang University, Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou, Zhejiang Province, 310000, P. R. China
| | - Xin Huang
- Department of Orthopedic Surgery, The Second Affiliated Hospital Zhejiang University School of Medicine, Orthopedics Research Institute of Zhejiang University, Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou, Zhejiang Province, 310000, P. R. China
| | - Nong Lin
- Department of Orthopedic Surgery, The Second Affiliated Hospital Zhejiang University School of Medicine, Orthopedics Research Institute of Zhejiang University, Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou, Zhejiang Province, 310000, P. R. China
| | - Yuxiao Ye
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Suya Lin
- School of Material Science and Engineering, University of New South Wales, Sydney, 2052, Australia
| | - Jiamin Zhang
- School of Material Science and Engineering, University of New South Wales, Sydney, 2052, Australia
| | - Jiaqi Shao
- The First Affiliated Hospital Zhejiang University School of Medicine, Hangzhou, 310003, P. R. China
| | - Songfeng Chen
- Department of Orthopedics, The First Affiliated Hospital Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Mingmin Shi
- Department of Orthopedic Surgery, The Second Affiliated Hospital Zhejiang University School of Medicine, Orthopedics Research Institute of Zhejiang University, Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou, Zhejiang Province, 310000, P. R. China
| | - Xingzhi Zhou
- Department of Orthopedic Surgery, The Second Affiliated Hospital Zhejiang University School of Medicine, Orthopedics Research Institute of Zhejiang University, Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou, Zhejiang Province, 310000, P. R. China
| | - Peng Lin
- Department of Orthopedic Surgery, The Second Affiliated Hospital Zhejiang University School of Medicine, Orthopedics Research Institute of Zhejiang University, Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou, Zhejiang Province, 310000, P. R. China
| | - Yucheng Xue
- Department of Orthopedic Surgery, The Second Affiliated Hospital Zhejiang University School of Medicine, Orthopedics Research Institute of Zhejiang University, Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou, Zhejiang Province, 310000, P. R. China
| | - Chengcheng Yu
- Department of Orthopedic Surgery, The Second Affiliated Hospital Zhejiang University School of Medicine, Orthopedics Research Institute of Zhejiang University, Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou, Zhejiang Province, 310000, P. R. China
| | - Xiaohua Yu
- Department of Orthopedic Surgery, The Second Affiliated Hospital Zhejiang University School of Medicine, Orthopedics Research Institute of Zhejiang University, Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou, Zhejiang Province, 310000, P. R. China
| | - Zhaoming Ye
- Department of Orthopedic Surgery, The Second Affiliated Hospital Zhejiang University School of Medicine, Orthopedics Research Institute of Zhejiang University, Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou, Zhejiang Province, 310000, P. R. China
| | - Kui Cheng
- School of Material Science and Engineering, University of New South Wales, Sydney, 2052, Australia
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Samiei M, Alipour M, Khezri K, Saadat YR, Forouhandeh H, Abdolahinia ED, Vahed SZ, Sharifi S, Dizaj SM. Application of collagen and mesenchymal stem cells in regenerative dentistry. Curr Stem Cell Res Ther 2021; 17:606-620. [PMID: 34931969 DOI: 10.2174/1574888x17666211220100521] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 09/28/2021] [Accepted: 11/10/2021] [Indexed: 11/22/2022]
Abstract
Collagen is an important macromolecule of extracellular matrix (ECM) in bones, teeth, and temporomandibular joints. Mesenchymal stem cells (MSCs) interact with the components of the ECM such as collagen, proteoglycans, glycosaminoglycans (GAGs), and several proteins on behalf of variable matrix elasticity and bioactive cues. Synthetic collagen-based biomaterials could be effective scaffolds for regenerative dentistry applications due to mimicking of host tissues' ECM. These biomaterials are biocompatible, biodegradable, readily available, and non-toxic to cells whose capability promotes cellular response and wound healing in the craniofacial region. Collagen could incorporate other biomolecules to induce mineralization in calcified tissues such as bone and tooth. Moreover, the addition of these molecules or other polymers to collagen-based biomaterials could enhance mechanical properties, which is important in load-bearing areas such as the mandible. A literature review was performed via reliable internet database (mainly PubMed) based on MeSH keywords. This review first describes the properties of collagen as a key protein in the structure of hard tissues. Then, it introduces different types of collagens, the correlation between collagen and MSCs, and the methods used to modify collagen in regenerative dentistry including recent progression on the regeneration of periodontium, dentin-pulp complex, and temporomandibular joint by applying collagen. Besides, the prospects and challenges of collagen-based biomaterials in the craniofacial region pointes out.
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Affiliation(s)
- Mohammad Samiei
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mahdieh Alipour
- Dental and Periodontal Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Khadijeh Khezri
- Deputy of Food and Drug Administration, Urmia University of Medical Sciences, Urmia, Iran
| | | | - Haleh Forouhandeh
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Elaheh Dalir Abdolahinia
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Simin Sharifi
- Dental and Periodontal Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Solmaz Maleki Dizaj
- Dental and Periodontal Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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Mollentze J, Durandt C, Pepper MS. An In Vitro and In Vivo Comparison of Osteogenic Differentiation of Human Mesenchymal Stromal/Stem Cells. Stem Cells Int 2021; 2021:9919361. [PMID: 34539793 PMCID: PMC8443361 DOI: 10.1155/2021/9919361] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 07/23/2021] [Accepted: 08/20/2021] [Indexed: 12/11/2022] Open
Abstract
The use of stem cells in regenerative medicine, including tissue engineering and transplantation, has generated a great deal of enthusiasm. Mesenchymal stromal/stem cells (MSCs) can be isolated from various tissues, most commonly, bone marrow but more recently adipose tissue, dental pulp, and Wharton's jelly, to name a few. MSCs display varying phenotypic profiles and osteogenic differentiating capacity depending and their site of origin. MSCs have been successfully differentiated into osteoblasts both in vitro an in vivo but discrepancies exist when the two are compared: what happens in vitro does not necessarily happen in vivo, and it is therefore important to understand why these differences occur. The osteogenic process is a complex network of transcription factors, stimulators, inhibitors, proteins, etc., and in vivo experiments are helpful in evaluating the various aspects of this osteogenic process without distractions and confounding variables. With that in mind, the results of in vitro experiments need to be carefully considered and interpreted with caution as they do not perfectly replicate the conditions found within living organisms. This is where in vivo experiments help us better understand interactions that might occur in the osteogenic process that cannot be replicated in vitro. Potentially, these differences could also be exploited to develop an optimal MSC cell therapeutic product that can be used for bone disorders. There are many bone disorders, most of which cause a great deal of discomfort. Clinically acceptable protocols could be developed in which MSCs are used to aid in bone regeneration providing relief for patients with chronic pain. The aim of this review is to examine the differences between studies conducted in vitro and in vivo with regard to the osteogenic process to better define the gaps in current osteogenic research. By better understanding osteogenic differentiation, we can better define treatment strategies for various bone disorders.
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Affiliation(s)
- Jamie Mollentze
- Institute for Cellular and Molecular Medicine, Department of Immunology; SAMRC Extramural Unit for Stem Cell Research and Therapy, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Chrisna Durandt
- Institute for Cellular and Molecular Medicine, Department of Immunology; SAMRC Extramural Unit for Stem Cell Research and Therapy, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Michael S. Pepper
- Institute for Cellular and Molecular Medicine, Department of Immunology; SAMRC Extramural Unit for Stem Cell Research and Therapy, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
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Collagen Type I Biomaterials as Scaffolds for Bone Tissue Engineering. Polymers (Basel) 2021; 13:polym13040599. [PMID: 33671329 PMCID: PMC7923188 DOI: 10.3390/polym13040599] [Citation(s) in RCA: 99] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 02/12/2021] [Accepted: 02/12/2021] [Indexed: 12/12/2022] Open
Abstract
Collagen type I is the main organic constituent of the bone extracellular matrix and has been used for decades as scaffolding material in bone tissue engineering approaches when autografts are not feasible. Polymeric collagen can be easily isolated from various animal sources and can be processed in a great number of ways to manufacture biomaterials in the form of sponges, particles, or hydrogels, among others, for different applications. Despite its great biocompatibility and osteoconductivity, collagen type I also has some drawbacks, such as its high biodegradability, low mechanical strength, and lack of osteoinductive activity. Therefore, many attempts have been made to improve the collagen type I-based implants for bone tissue engineering. This review aims to summarize the current status of collagen type I as a biomaterial for bone tissue engineering, as well as to highlight some of the main efforts that have been made recently towards designing and producing collagen implants to improve bone regeneration.
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Jeong W, Kim YS, Roh TS, Kang EH, Jung BK, Yun IS. The effect of combination therapy on critical-size bone defects using non-activated platelet-rich plasma and adipose-derived stem cells. Childs Nerv Syst 2020; 36:145-151. [PMID: 30879128 DOI: 10.1007/s00381-019-04109-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Accepted: 02/27/2019] [Indexed: 02/07/2023]
Abstract
PURPOSE Non-activated platelet-rich plasma (nPRP) slowly releases growth factors that induce bone regeneration. Adipose tissue-derived stem cells (ASCs) are also known to induce osteoblast differentiation. In this study, we investigated the combined effect of nPRP and ASC treatment compared with single therapy on bone regeneration. METHODS Thirty New Zealand white rabbits with 15 × 15 mm2 calvarial defects were randomly divided into four treatment groups: control, nPRP, ASC, or nPRP + ASC groups. For treatment, rabbits received a collagen sponge (Gelfoam®) saturated with 1 ml normal saline (controls), 1 ml non-activated PRP (nPRP group), 2 × 106 ASCs (ASCs group), or 2 × 106 ASCs plus l ml nPRP (nPRP + ASCs group). After 16 weeks, bone volume and new bone surface area were measured, using three-dimensional computed tomography and digital photography. Bone regeneration was also histologically analyzed. RESULTS Bone surface area in the nPRP group was significantly higher than both the control and ASC groups (p < 0.001 and p < 0.01, respectively). The percentage of regenerated bone surface area in the nPRP + ASC group was also significantly higher than the corresponding ratios in the control group (p < 0.001). The volume of new bone in the nPRP group was increased compared to the controls (p < 0.05). CONCLUSION Our results demonstrate that slow-releasing growth factors from nPRP did not influence ASC activation in this model of bone healing. PRP activation is important for the success of combination therapy using nPRP and ASCs.
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Affiliation(s)
- Woonhyeok Jeong
- Department of Plastic and Reconstructive Surgery, Keimyung University School of Medicine, Dongsan Medical Center, Daegu, South Korea
| | - Young Seok Kim
- Department of Plastic and Reconstructive Surgery, Institute for Human Tissue Restoration, Yonsei University Health System, Gangnam Severance Hospital, 211 Eonjoo-ro, Gangnam-gu, Seoul, 135-720, South Korea
| | - Tai Suk Roh
- Department of Plastic and Reconstructive Surgery, Institute for Human Tissue Restoration, Yonsei University Health System, Gangnam Severance Hospital, 211 Eonjoo-ro, Gangnam-gu, Seoul, 135-720, South Korea
| | - Eun Hye Kang
- Department of Plastic and Reconstructive Surgery, Institute for Human Tissue Restoration, Yonsei University Health System, Severance Hospital, Seoul, South Korea
| | - Bok Ki Jung
- Department of Plastic and Reconstructive Surgery, Institute for Human Tissue Restoration, Yonsei University Health System, Gangnam Severance Hospital, 211 Eonjoo-ro, Gangnam-gu, Seoul, 135-720, South Korea
| | - In Sik Yun
- Department of Plastic and Reconstructive Surgery, Institute for Human Tissue Restoration, Yonsei University Health System, Gangnam Severance Hospital, 211 Eonjoo-ro, Gangnam-gu, Seoul, 135-720, South Korea.
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Kunisch E, Gunnella F, Wagner S, Dees F, Maenz S, Bossert J, Jandt KD, Kinne RW. The poly (l-lactid-co-glycolide; PLGA) fiber component of brushite-forming calcium phosphate cement induces the osteogenic differentiation of human adipose tissue-derived stem cells. ACTA ACUST UNITED AC 2019; 14:055012. [PMID: 31465298 DOI: 10.1088/1748-605x/ab3544] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A brushite-forming calcium phosphate cement (CPC) was mechanically stabilized by addition of poly (l-lactid-co-glycolide; PLGA) fibers (≤10% w/w). It proved highly biocompatible and its fiber component enhanced bone formation in a sheep lumbar vertebroplasty model. However, possible effects on the osteogenic differentiation of resident mesenchymal stem cells (MSCs) remained unexplored. The present study used a novel approach, simultaneously analyzing the influence of a solid CPC scaffold and its relatively low PLGA proportion (a mimicry of natural bone) on osteogenic, chondrogenic, and adipogenic differentiation, as well as the pluripotency of human adipose tissue-derived mesenchymal stem cells (hASCs). hASCs were cultured on CPC discs with/without PLGA fibers (5% and 10%) in the absence of osteogenic medium for 3, 7, and 14 d. Gene expression of osteogenic markers (Runx2, osterix, alkaline phosphatase, collagen I, osteonectin, osteopontin, osteocalcin), chondrogenic markers (collagen II, Sox9, aggrecan), adipogenic markers (PPARG, Leptin, and FABP4), and pluripotency markers (Nanog, Tert, Rex) was analyzed by RT-PCR. The ability of hASCs to synthesize alkaline phosphatase was also evaluated. Cell number and viability were determined by fluorescein diacetate/propidium iodide staining. Compared to pure CPC, cultivation of hASCs on fiber-reinforced CPC transiently induced the gene expression of Runx2 and osterix (day 3), and long-lastingly augmented the expression of alkaline phosphatase (and its enzyme activity), collagen I, and osteonectin (until day 14). In contrast, augmented expression of all chondrogenic, adipogenic, and pluripotency markers was limited to day 3, followed by significant downregulation. Cultivation of hASCs on fiber-reinforced CPC reduced the cell number, but not the proportion of viable cells (viability > 95%). The PLGA component of fiber-reinforced, brushite-forming CPC supports long-lasting osteogenic differentiation of hASCs, whereas chondrogenesis, adipogenesis, and pluripotency are initially augmented, but subsequently suppressed. In view of parallel animal results, PLGA fibers may represent an interesting clinical target for future improvement of CPC- based bone regeneration.
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Affiliation(s)
- Elke Kunisch
- Experimental Rheumatology Unit, Department of Orthopedics, Jena University Hospital, Waldkliniken Eisenberg GmbH, Eisenberg, Germany
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Geven MA, Grijpma DW. Additive manufacturing of composite structures for the restoration of bone tissue. ACTA ACUST UNITED AC 2019. [DOI: 10.1088/2399-7532/ab201f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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10
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Brennan MA, Renaud A, Guilloton F, Mebarki M, Trichet V, Sensebé L, Deschaseaux F, Chevallier N, Layrolle P. Inferior In Vivo Osteogenesis and Superior Angiogenesis of Human Adipose‐Derived Stem Cells Compared with Bone Marrow‐Derived Stem Cells Cultured in Xeno‐Free Conditions. Stem Cells Transl Med 2017; 6:2160-2172. [PMID: 29052365 PMCID: PMC5702520 DOI: 10.1002/sctm.17-0133] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Accepted: 08/17/2017] [Indexed: 12/24/2022] Open
Abstract
The possibility of using adipose tissue-derived stromal cells (ATSC) as alternatives to bone marrow-derived stromal cells (BMSC) for bone repair has garnered interest due to the accessibility, high cell yield, and rapid in vitro expansion of ATSC. For clinical relevance, their bone forming potential in comparison to BMSC must be proven. Distinct differences between ATSC and BMSC have been observed in vitro and comparison of osteogenic potential in vivo is not clear to date. The aim of the current study was to compare the osteogenesis of human xenofree-expanded ATSC and BMSC in vitro and in an ectopic nude mouse model of bone formation. Human MSC were implanted with biphasic calcium phosphate biomaterials in subcutis pockets for 8 weeks. Implant groups were: BMSC, ATSC, BMSC and ATSC mixed together in different ratios, as well as MSC primed with either osteogenic supplements (250 μM ascorbic acid, 10 mM β-glycerolphosphate, and 10 nM dexamethasone) or 50 ng/ml recombinant bone morphogenetic protein 4 prior to implantation. In vitro results show osteogenic gene expression and differentiation potentials of ATSC. Despite this, ATSC failed to form ectopic bone in vivo, in stark contrast to BMSC, although osteogenic priming did impart minor osteogenesis to ATSC. Neovascularization was enhanced by ATSC compared with BMSC; however, less ATSC engrafted into the implant compared with BMSC. Therefore, in the content of bone regeneration, the advantages of ATSC over BMSC including enhanced angiogenesis, may be negated by their lack of osteogenesis and prerequisite for osteogenic differentiation prior to transplantation. Stem Cells Translational Medicine 2017;6:2160-2172.
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Affiliation(s)
- Meadhbh A. Brennan
- INSERM, UMR 1238, PHYOS, Laboratory of Bone Sarcomas and Remodelling of Calcified Tissues, Faculty of Medicine, University of NantesNantesFrance
| | - Audrey Renaud
- INSERM, UMR 1238, PHYOS, Laboratory of Bone Sarcomas and Remodelling of Calcified Tissues, Faculty of Medicine, University of NantesNantesFrance
| | - Fabien Guilloton
- STROMA Lab UMR UPS/CNRS 5273, U1031 INSERM, EFS‐Pyrénées‐MéditerranéeToulouseFrance
| | - Miryam Mebarki
- INSERM, IMRB U955‐E10, Engineering and Cellular Therapy Unit, Etablissement Français du Sang, Faculty of Medicine, Paris Est UniversityCréteilFrance
| | - Valerie Trichet
- INSERM, UMR 1238, PHYOS, Laboratory of Bone Sarcomas and Remodelling of Calcified Tissues, Faculty of Medicine, University of NantesNantesFrance
| | - Luc Sensebé
- STROMA Lab UMR UPS/CNRS 5273, U1031 INSERM, EFS‐Pyrénées‐MéditerranéeToulouseFrance
| | - Frederic Deschaseaux
- STROMA Lab UMR UPS/CNRS 5273, U1031 INSERM, EFS‐Pyrénées‐MéditerranéeToulouseFrance
| | - Nathalie Chevallier
- INSERM, IMRB U955‐E10, Engineering and Cellular Therapy Unit, Etablissement Français du Sang, Faculty of Medicine, Paris Est UniversityCréteilFrance
| | - Pierre Layrolle
- INSERM, UMR 1238, PHYOS, Laboratory of Bone Sarcomas and Remodelling of Calcified Tissues, Faculty of Medicine, University of NantesNantesFrance
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Hao W, Jiang C, Jiang M, Wang T, Wang X. Osteogenic potency of dedifferentiated fat cells isolated from elderly people with osteoporosis. Exp Ther Med 2017; 14:43-50. [PMID: 28672891 PMCID: PMC5488489 DOI: 10.3892/etm.2017.4465] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Accepted: 01/26/2017] [Indexed: 12/13/2022] Open
Abstract
Mature adipocytes are the major cell type in adipose tissue. This study aimed to explore the osteogenic potency of dedifferentiated fat cells obtained from osteoporotic patients (opDFATs) in vitro and in vivo. Mature adipocytes and adipose-derived stem cells (opASCs) were harvested from subcutaneous adipose tissue. Mature adipocytes were dedifferentiated to produce opDFATs by the ceiling culture method. OpDFATs were osteogenically induced in vitro with opASCs as a control. Cell growth, alkaline phosphatase (ALPase) activity and cell mineralization were determined, and expression levels of osteogenesis-specific genes (collagen I, osteocalcin and bone sialoprotein) were analyzed using quantitative reverse transcription polymerase chain reaction. After 14 days, the opDFATs were combined with a poly(lactide-co-glycolide)-β-tricalcium phosphate porous scaffold after being suspended in collagen I gel and implanted into nude mice for 4 weeks prior to histological analysis. Unilocular lipid droplets in mature adipocytes gradually split into smaller droplets and disappeared from the cytoplasm. Mature adipocytes dedifferentiated to opDFATs and cell morphology changed from spherical to elongated. High levels of ALPase and cell mineralization were observed in opDFATs by staining. No significant differences were found between the growth curves, ALPase activity, cell mineralization and expression levels of osteogenesis-specific genes between opDFATS and opASCs. After implantation for 4 weeks, new bone tissue was observed histologically in the opDFATs-based biocomposite. OpDFATs are implicated as a novel type of seed cell for bone tissue engineering based on their osteogenic potency and higher abundance in adipose tissue compared with opASCs.
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Affiliation(s)
- Wei Hao
- Department of Orthopedics and Traumatology, Yantai Yuhuangding Hospital Affiliated to Qingdao University Medical College, Yantai, Shandong 264000, P.R. China
| | - Chuanqiang Jiang
- Department of Orthopedics and Traumatology, Yantaishan Hospital, Yantai, Shandong 264000, P.R. China
| | - Ming Jiang
- Department of Stomatology, 107 Hospital of Jinan Military Area, Yantai, Shandong 264002, P.R. China
| | - Tian Wang
- Department of Pharmacology, School of Pharmacy, Yantai University, Yantai, Shandong 264005, P.R. China
| | - Xin Wang
- Department of Orthopedics and Traumatology, Yantai Yuhuangding Hospital Affiliated to Qingdao University Medical College, Yantai, Shandong 264000, P.R. China
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12
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Kim BS, Yang SS, Lee J. Precoating of biphasic calcium phosphate bone substitute with atelocollagen enhances bone regeneration through stimulation of osteoclast activation and angiogenesis. J Biomed Mater Res A 2017; 105:1446-1456. [PMID: 28177580 DOI: 10.1002/jbm.a.36032] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Accepted: 02/03/2017] [Indexed: 11/09/2022]
Abstract
Type I collagen (Col) is a naturally polymerizing protein and important extracellular matrix bone component. The aim of this study was to improve bone regeneration capacity by precoating the surface of biphasic calcium phosphate (BCP) granules with AT-Col, and evaluating its biological effects. BCP granules were precoated with AT-Col using adsorption and lyophilization method. Morphology of AT-Col precoated surfaces was observed using scanning electron microscopy (SEM). Biocompatibility and osteogenic activity of AT-Col were determined in vitro with human mesenchymal stem cell (hMSCs). In vivo bone healing efficiency and related biological effects were determined using a rabbit calvarial defect model. SEM results revealed numerous irregularly distributed AT-Col polymer clusters on BCP granule surface. Biocompatibility experiments demonstrated that AT-Col was non-cytotoxic, and that cell proliferation, adhesion, and osteogenic activity were improved by AT-Col precoating. After in vivo surgical implantation into bone defects, new bone formation was improved by AT-Col granule precoating. Specifically, 8 weeks post-surgery, percentage bone volume was significantly higher in AT-Col/BCP animals (35.02 ± 1.89%) compared with BCP-treated animals (8.94 ± 1.47%) (p < 0.05). Furthermore, tartrate-resistant acid phosphatase staining and CD31 immunohistochemical staining revealed that osteoclast activation and new blood vessel formation in vivo were also induced by AT-Col precoating. Collectively, these data indicate that AT-Col/BCP may be potentially used as a bone substitute to enable effective bone regeneration through enhanced new blood vessel formation and osteoclast activation. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 105A: 1446-1456, 2017.
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Affiliation(s)
- Beom-Su Kim
- Bonecell Biotech Inc, Dunsan-dong, Seo-gu, Daejeon, 302-830, Republic of Korea.,Wonkwang Bone Regeneration Research Institute, Wonkwang University, Iksan, 570-749, Republic of Korea
| | - Sun-Sik Yang
- Wonkwang Bone Regeneration Research Institute, Wonkwang University, Iksan, 570-749, Republic of Korea
| | - Jun Lee
- Bonecell Biotech Inc, Dunsan-dong, Seo-gu, Daejeon, 302-830, Republic of Korea.,Wonkwang Bone Regeneration Research Institute, Wonkwang University, Iksan, 570-749, Republic of Korea.,Department of Oral and Maxillofacial Surgery, Daejeon Dental Hospital, College of Dentistry, Wonkwang University, 302-830, Republic of Korea
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Yin F, Cai J, Zen W, Wei Y, Zhou W, Yuan F, Singh SR, Wei Y. Cartilage Regeneration of Adipose-Derived Stem Cells in the TGF-β1-Immobilized PLGA-Gelatin Scaffold. Stem Cell Rev Rep 2016; 11:453-9. [PMID: 25267436 DOI: 10.1007/s12015-014-9561-9] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Articular cartilage has restricted self-regenerative capacity; therefore, treatment of cartilage lesions is a great challenge in the field of orthopedics. In the present study, we evaluate the enhancing effect of a transforming growth factor-beta 1 (TGF-β1)-immobilized scaffold, fabricated by incorporating TGF-β1-loaded gelatin microspheres into PLGA framework, on the differentiation of adipose-derived stem cells (ASCs) into chondrocytes. Significant increase in cell proliferation was observed in the TGF-β1-immobilized PLGA-gelatin scaffold, as compared with the ASC-seeded non-TGF-β1-immobilized PLGA-gelatin scaffold. When chondrogenic differentiation of ASCs was evaluated for both constructs, sulfated glycosaminoglycan (sGAG) content was significantly higher in the TGF-β1-immobilized scaffold. This study showed that ASCs containing the TGF-β1-immobilized scaffold better promoted cartilage regeneration in defective articular cartilage, which is assessed by histological observation. Based on the above results, we conclude that TGF-β1-immobilized PLGA-gelatin scaffold seeded with ASCs considerably enhances the quality of the tissue-engineered cartilage, therefore, advancing the field of cartilage tissue engineering.
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Affiliation(s)
- Feng Yin
- Department of Joint and Bone Disease Shanghai East Hospital, Tongji University School of Medicine, Shanghai, 200120, People's Republic of China
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14
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Sika Deer Antler Collagen Type I-Accelerated Osteogenesis in Bone Marrow Mesenchymal Stem Cells via the Smad Pathway. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2016; 2016:2109204. [PMID: 27066099 PMCID: PMC4809101 DOI: 10.1155/2016/2109204] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Accepted: 12/06/2015] [Indexed: 11/17/2022]
Abstract
Deer antler preparations have been used to strengthen bones for centuries. It is particularly rich in collagen type I. This study aimed to unravel part of the purported bioremedial effect of Sika deer antler collagen type I (SDA-Col I) on bone marrow mesenchymal stem cells. The results suggest that SDA-Col I might be used to promote and regulate osteoblast proliferation and differentiation. SDA-Col I might potentially provide the basis for novel therapeutic strategies in the treatment of bone injury and/or in scaffolds for bone replacement strategies. Finally, isolation of SDA-Col I from deer antler represents a renewable, green, and uncomplicated way to obtain a biomedically valuable therapeutic.
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Kapur SK, Dos-Anjos Vilaboa S, Llull R, Katz AJ. Adipose Tissue and Stem/Progenitor Cells. Clin Plast Surg 2015; 42:155-67. [DOI: 10.1016/j.cps.2014.12.010] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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16
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Lin L, Gao H, Dong Y. Bone regeneration using a freeze-dried 3D gradient-structured scaffold incorporating OIC-A006-loaded PLGA microspheres based on β-TCP/PLGA. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2015; 26:5327. [PMID: 25577209 DOI: 10.1007/s10856-014-5327-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Accepted: 07/20/2014] [Indexed: 06/04/2023]
Abstract
To reveal the latent capacity of the growth factor-like low-molecular-weight material OIC-A006 in tissue regeneration, it is essential to design a porous scaffold in order to concurrently accommodate cells and drug release in a controlled manner. Consequently, we fabricated poly (L-lactide-co-glycolide) (PLGA)-based microspheres with an OIC-A006-loaded gradient-structured β-TCP/PLGA scaffold by freeze-drying which could then be used for drug delivery and bone regeneration. The OIC-A006-loaded β-TCP/PLGA scaffold consisted of two parts which loaded different doses of OIC-A006 (6.25 μM, outside; 12.5 μM, inside). The porosity, compressive strength, SEM, degradation, and cumulative amount of drug release in vitro were characterized. Furthermore, we confirmed the incorporation of OIC-A006 into the PLGA-based microspheres within the scaffolds using UV-spectrophotometry, and the amount of drug remaining in the scaffold was maintained by 10 % for up to 28 days. The drug release was slower in the normal-structured drug-loaded scaffold. The OIC-A006 released action from the OIC-A006-loaded β-TCP/PLGA scaffold with ideal therapeutic prospects in tissue regeneration. In vitro cell culture results showed that this gradient-structured composite scaffold can induce the adhesion and proliferation of rat bone marrow stromal cells towards osteoblasts. These results showed that the newly developed OIC-A006-loaded scaffolds with gradient structure can be potentially applied to bone regeneration in clinical applications.
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Affiliation(s)
- Liulan Lin
- School of Mechatronics Engineering and Automation, Shanghai University, Shanghai, 200444, People's Republic of China
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17
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Isolation, characterization, differentiation, and application of adipose-derived stem cells. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2014; 123:55-105. [PMID: 20091288 DOI: 10.1007/10_2009_24] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
While bone marrow-derived mesenchymal stem cells are known and have been investigated for a long time, mesenchymal stem cells derived from the adipose tissue were identified as such by Zuk et al. in 2001. However, as subcutaneous fat tissue is a rich source which is much more easily accessible than bone marrow and thus can be reached by less invasive procedures, adipose-derived stem cells have moved into the research spotlight over the last 8 years.Isolation of stromal cell fractions involves centrifugation, digestion, and filtration, resulting in an adherent cell population containing mesenchymal stem cells; these can be subdivided by cell sorting and cultured under common conditions.They seem to have comparable properties to bone marrow-derived mesenchymal stem cells in their differentiation abilities as well as a favorable angiogenic and anti-inflammatory cytokine secretion profile and therefore have become widely used in tissue engineering and clinical regenerative medicine.
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18
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Adipose-derived stromal cells for osteoarticular repair: trophic function versus stem cell activity. Expert Rev Mol Med 2014; 16:e9. [PMID: 24810570 PMCID: PMC4017835 DOI: 10.1017/erm.2014.9] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The identification of multipotent adipose-derived stromal cells (ASC) has raised hope that tissue regeneration approaches established with bone-marrow-derived stromal cells (BMSC) can be reproduced with a cell-type that is far more accessible in large quantities. Recent detailed comparisons, however, revealed subtle functional differences between ASC and BMSC, stressing the concept of a common mesenchymal progenitor existing in a perivascular niche across all tissues. Focussing on bone and cartilage repair, this review summarises recent in vitro and in vivo studies aiming towards tissue regeneration with ASC. Advantages of good accessibility, high yield and superior growth properties are counterbalanced by an inferiority of ASC to form ectopic bone and stimulate long-bone healing along with their less pronounced osteogenic and angiogenic gene expression signature. Hence, particular emphasis is placed on establishing whether stem cell activity of ASC is so far proven and relevant for successful osteochondral regeneration, or whether trophic activity may largely determine therapeutic outcome.
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20
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Duan C, Liu J, Yuan Z, Meng G, Yang X, Jia S, Zhang J, Chen S. Adenovirus-mediated transfer of VEGF into marrow stromal cells combined with PLGA/TCP scaffold increases vascularization and promotes bone repair in vivo. Arch Med Sci 2014; 10:174-81. [PMID: 24701231 PMCID: PMC3953961 DOI: 10.5114/aoms.2012.30950] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2011] [Revised: 10/25/2011] [Accepted: 12/23/2011] [Indexed: 02/07/2023] Open
Abstract
INTRODUCTION Large osseous defect remains a serious clinical problem due to the lack of sufficient blood supply and it has been proposed that this situation can be relieved by accelerating the formation of new vessels in the process of bone defect repair. The aim of this study was to develop a new type of artificial bone by transferring the VEGF gene into marrow stromal cells (MSCs) and seeding them into a porous scaffold. MATERIAL AND METHODS An adenovirus vector was employed to transfer the VEGF gene into MSCs and expression of the exogenous gene was confirmed by ELISA. Next the transduced cells were seeded into a collagen I modified PLGA/TCP scaffold. The constructed new complex artificial bone was then assessed for biocompatibility in vitro and blood vessel formation and bone formation in vivo. RESULTS We found that adenovirus mediated VEGF gene transfer into MSCs sustained VEGF expression in MSCs for 3 weeks. Porous scaffold PLGA/TCP made by rapid prototyping technology exhibited improved biocompatibility resulting from crosslinking with collagen I. Furthermore, the in vivo study showed that large amounts of blood vessels were detected histologically 1 week after artificial bone implantation, and significant bone formation was detected 8 weeks after implantation. CONCLUSIONS Our findings suggest that gene transfer of VEGF into MSCs combined with PLGA/TCP scaffold enhances bone repair in vivo by promoting vascularization.
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Affiliation(s)
- Chunguang Duan
- Department of Orthopaedics and Traumatology, Xijing Hospital, Fourth Military Medical University, Xi'an, PR China
| | - Jian Liu
- Department of Orthopaedics and Traumatology, Xijing Hospital, Fourth Military Medical University, Xi'an, PR China
| | - Zhi Yuan
- Department of Orthopaedics and Traumatology, Xijing Hospital, Fourth Military Medical University, Xi'an, PR China
| | - Guolin Meng
- Department of Orthopaedics and Traumatology, Xijing Hospital, Fourth Military Medical University, Xi'an, PR China
| | - Xiumei Yang
- Department of Ophthalmology, Xijing Hospital, Fourth Military Medical University, Xi'an, PR China
| | - Shuaijun Jia
- Department of Orthopaedics and Traumatology, Xijing Hospital, Fourth Military Medical University, Xi'an, PR China
| | - Jinkang Zhang
- Department of Orthopaedics and Traumatology, Xijing Hospital, Fourth Military Medical University, Xi'an, PR China
| | - Shi Chen
- Department of Orthopaedics and Traumatology, Xijing Hospital, Fourth Military Medical University, Xi'an, PR China
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21
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Rossi F, Santoro M, Perale G. Polymeric scaffolds as stem cell carriers in bone repair. J Tissue Eng Regen Med 2013; 9:1093-119. [DOI: 10.1002/term.1827] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2012] [Revised: 07/29/2013] [Accepted: 08/30/2013] [Indexed: 12/16/2022]
Affiliation(s)
- Filippo Rossi
- Department of Chemistry, Materials and Chemical Engineering; 'Giulio Natta' Politecnico di Milano; Milan Italy
| | - Marco Santoro
- Department of Chemical and Biomolecular Engineering; Rice University; Houston TX USA
| | - Giuseppe Perale
- Department of Chemistry, Materials and Chemical Engineering; 'Giulio Natta' Politecnico di Milano; Milan Italy
- Department of Innovative Technologies; University of Southern Switzerland; Manno Switzerland
- Swiss Institute for Regenerative Medicine; Taverne Switzerland
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22
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Jiang M, Wang X, Liu H, Zhou L, Jiang T, Zhou H, Hao W. Bone formation in adipose-derived stem cells isolated from elderly patients with osteoporosis: a preliminary study. Cell Biol Int 2013; 38:97-105. [PMID: 24115596 DOI: 10.1002/cbin.10182] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2013] [Accepted: 08/26/2013] [Indexed: 12/13/2022]
Abstract
We have explored the osteogenic potency of adipose-derived stem cells from osteoporotic patients (opASCs). opASCs were osteogenically induced in vitro with collagen I hydrogel or in culture plate. Detection of alkaline phosphatase (ALPase) and cell mineralisation, and quantitative RT-PCR of collagen I, osteocalcin and bone sialoprotein were undertaken. Proliferation and morphology studies were also performed. After 14 days, opASCs-collagen I hydrogel composite was implanted into nude mice for 4 weeks prior to radiographic and histological analysis. Staining of ALPase and cell mineralisation was strongly positive in opASCs. Fibroblast-like opASCs induced with collagen I hydrogel were evenly distributed and proliferated at a higher rate than in culture plates, showing similar growth curves for both genders. Expression of ALPase activity, cell mineralisation and osteogenic specific genes were higher in opASCs with collagen I hydrogel (male samples had better osteogenicity than female samples) than in culture plates. After implantation for 4 weeks, radiopaque area signifying new bone tissue was observed in opASCs-collagen I hydrogel composite, with no donor gender differences. Thus opASCs with collagen I hydrogel have adequate osteogenic potency and offer new possibilities for osteoporosis-related bone tissue engineering in male and female patients.
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Affiliation(s)
- Ming Jiang
- Department of Stomatology, 107 Hospital of Ji'nan military area, Yantai, Shandong, P.R. China
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23
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Liao HT, Lee MY, Tsai WW, Wang HC, Lu WC. Osteogenesis of adipose-derived stem cells on polycaprolactone-β-tricalcium phosphate scaffold fabricated via selective laser sintering and surface coating with collagen type I. J Tissue Eng Regen Med 2013; 10:E337-E353. [DOI: 10.1002/term.1811] [Citation(s) in RCA: 80] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2012] [Revised: 01/01/2013] [Accepted: 07/22/2013] [Indexed: 12/27/2022]
Affiliation(s)
- Han-Tsung Liao
- Department of Plastic and Reconstructive Surgery, Craniofacial Research Centre, Chang Gung Memorial Hospital; Chang Gung University; Taiwan Republic of China
| | - Ming-Yih Lee
- Graduate Institute of Medical Mechatronics; Chang Gung University; Taiwan Republic of China
| | - Wen-Wei Tsai
- Graduate Institute of Medical Mechatronics; Chang Gung University; Taiwan Republic of China
| | - Hsiu-Chen Wang
- Graduate Institute of Mechanical Engineering; Chang Gung University; Taiwan Republic of China
| | - Wei-Chieh Lu
- Graduate Institute of Mechanical Engineering; Chang Gung University; Taiwan Republic of China
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Abstract
In 2001, researchers at the University of California, Los Angeles, described the isolation of a new population of adult stem cells from liposuctioned adipose tissue. These stem cells, now known as adipose-derived stem cells or ADSCs, have gone on to become one of the most popular adult stem cells populations in the fields of stem cell research and regenerative medicine. As of today, thousands of research and clinical articles have been published using ASCs, describing their possible pluripotency in vitro, their uses in regenerative animal models, and their application to the clinic. This paper outlines the progress made in the ASC field since their initial description in 2001, describing their mesodermal, ectodermal, and endodermal potentials both in vitro and in vivo, their use in mediating inflammation and vascularization during tissue regeneration, and their potential for reprogramming into induced pluripotent cells.
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25
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Nino-Fong R, McDuffee LA, Esparza Gonzalez BP, Kumar MR, Merschrod S. EF, Poduska KM. Scaffold Effects on Osteogenic Differentiation of Equine Mesenchymal Stem Cells: An In Vitro Comparative Study. Macromol Biosci 2013; 13:348-55. [DOI: 10.1002/mabi.201200355] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2012] [Revised: 11/14/2012] [Indexed: 11/10/2022]
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Xie XH, Wang XL, Zhang G, He YX, Leng Y, Tang TT, Pan X, Qin L. Biofabrication of a PLGA-TCP-based porous bioactive bone substitute with sustained release of icaritin. J Tissue Eng Regen Med 2012; 9:961-72. [DOI: 10.1002/term.1679] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2012] [Revised: 10/14/2012] [Accepted: 11/10/2012] [Indexed: 02/01/2023]
Affiliation(s)
- Xin-Hui Xie
- Department of Orthopaedics and Traumatology; The Chinese University of Hong Kong; People's Republic of China
- Department of Orthopaedics; First Affiliated Hospital of Soochow University; Suzhou People's Republic of China
| | - Xin-Luan Wang
- Department of Orthopaedics and Traumatology; The Chinese University of Hong Kong; People's Republic of China
- Translational Medicine Research and Development Centre, Institute of Biomedical and Health Engineering, Shenzhen Institute of Advanced Technology; Chinese Academy of Sciences; Shenzhen People's Republic of China
| | - Ge Zhang
- Department of Orthopaedics and Traumatology; The Chinese University of Hong Kong; People's Republic of China
| | - Yi-Xin He
- Department of Orthopaedics and Traumatology; The Chinese University of Hong Kong; People's Republic of China
| | - Yang Leng
- Department of Mechanical Engineering; Hong Kong University of Science and Technology; People's Republic of China
| | - Ting-Ting Tang
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital; Shanghai Jiaotong University School of Medicine; Shanghai People's Republic of China
| | - Xiaohua Pan
- Department of Orthopaedics, Shenzhen People's Hospital, Second Clinical Medical College; Ji'nan University; Shenzhen China
| | - Ling Qin
- Department of Orthopaedics and Traumatology; The Chinese University of Hong Kong; People's Republic of China
- Translational Medicine Research and Development Centre, Institute of Biomedical and Health Engineering, Shenzhen Institute of Advanced Technology; Chinese Academy of Sciences; Shenzhen People's Republic of China
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Kang BJ, Kim Y, Lee SH, Kim WH, Woo HM, Kweon OK. Collagen I gel promotes homogenous osteogenic differentiation of adipose tissue-derived mesenchymal stem cells in serum-derived albumin scaffold. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 24:1233-43. [PMID: 23713425 DOI: 10.1080/09205063.2012.745717] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Repair of bone defects is a difficult clinical problem for reconstructive surgeons. Bone tissue engineering using an appropriate scaffold with cells is a new therapy for the repair of bone defects. The aim of this study was to evaluate the in vitro osteogenesis of canine adipose tissue-derived mesenchymal stem cells (Ad-MSCs) cultured in a combination of collagen I gel and a porous serum-derived albumin scaffold. A serum-derived albumin scaffold was prepared with canine serum by cross-linking and freeze-drying procedures. Ad-MSCs were seeded into serum-derived albumin scaffolds with or without collagen I gel, and were exposed to osteogenic differentiation conditions in vitro. After 28 days of in vitro culture, the distribution and osteogenic differentiation of Ad-MSCs cultured in the scaffold were evaluated by scanning electron microscopy, histology, immunohistochemistry, alkaline phosphatase (ALP) activity assay, and calcium colorimetric assay. Ad-MSCs showed more homogeneous distribution and osteogenic differentiation in the scaffold with collagen I gel than without collagen I gel. ALP activity and extracellular matrix mineralization in the construct with type I collagen were significantly higher than in the construct without type I collagen (p < 0.05). In conclusion, the combination of collagen I gel and the serum-derived albumin scaffold enhanced osteogenic differentiation and homogenous distribution of Ad-MSCs.
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Affiliation(s)
- Byung-Jae Kang
- Department of Veterinary Surgery, College of Veterinary Medicine, Seoul National University, Daehak-dong, Gwanak-gu, Seoul, Korea
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Chen M, Le DQS, Hein S, Li P, Nygaard JV, Kassem M, Kjems J, Besenbacher F, Bünger C. Fabrication and characterization of a rapid prototyped tissue engineering scaffold with embedded multicomponent matrix for controlled drug release. Int J Nanomedicine 2012; 7:4285-97. [PMID: 22904634 PMCID: PMC3418070 DOI: 10.2147/ijn.s33083] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2012] [Indexed: 11/23/2022] Open
Abstract
Bone tissue engineering implants with sustained local drug delivery provide an opportunity for better postoperative care for bone tumor patients because these implants offer sustained drug release at the tumor site and reduce systemic side effects. A rapid prototyped macroporous polycaprolactone scaffold was embedded with a porous matrix composed of chitosan, nanoclay, and β-tricalcium phosphate by freeze-drying. This composite scaffold was evaluated on its ability to deliver an anthracycline antibiotic and to promote formation of mineralized matrix in vitro. Scanning electronic microscopy, confocal imaging, and DNA quantification confirmed that immortalized human bone marrow-derived mesenchymal stem cells (hMSC-TERT) cultured in the scaffold showed high cell viability and growth, and good cell infiltration to the pores of the scaffold. Alkaline phosphatase activity and osteocalcin staining showed that the scaffold was osteoinductive. The drug-release kinetics was investigated by loading doxorubicin into the scaffold. The scaffolds comprising nanoclay released up to 45% of the drug for up to 2 months, while the scaffold without nanoclay released 95% of the drug within 4 days. Therefore, this scaffold can fulfill the requirements for both bone tissue engineering and local sustained release of an anticancer drug in vitro. These results suggest that the scaffold can be used clinically in reconstructive surgery after bone tumor resection. Moreover, by changing the composition and amount of individual components, the scaffold can find application in other tissue engineering areas that need local sustained release of drug.
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Affiliation(s)
- Muwan Chen
- Orthopaedic Research Lab, Aarhus University Hospital, Aarhus C, Denmark.
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29
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Xie XH, Wang XL, He YX, Liu Z, Sheng H, Zhang G, Qin L. Promotion of bone repair by implantation of cryopreserved bone marrow-derived mononuclear cells in a rabbit model of steroid-associated osteonecrosis. ACTA ACUST UNITED AC 2012; 64:1562-71. [PMID: 22544527 DOI: 10.1002/art.34525] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
OBJECTIVE Cytotherapy is an insufficient method for promoting bone repair in steroid-associated osteonecrosis (SAON), and this has been attributed to impairment of the bioactivity of bone marrow-derived stem cells (BMSCs) after pulsed administration of steroids. Cryopreserved autologous bone marrow-derived mononuclear cells (BMMNCs), which contain BMSCs, might maintain their bioactivity in vitro. This study sought to investigate the effects of cryopreserved BMMNCs, before steroid administration, on the enhancement of bone repair in an established rabbit model of SAON. METHODS For in vitro study, bone marrow was harvested 4 weeks before SAON induction from the iliac crests of rabbits (n = 10) to isolate fresh BMMNCs, and the BMMNCs were then cryopreserved for 8 weeks. Both the fresh and the cryopreserved BMMNCs were evaluated for their bioactivity and osteogenic differentiation capacity. In addition, BMMNCs were isolated 2 weeks after SAON induction and subjected to the same evaluations. For in vivo study, cryopreserved BMMNCs were implanted into the bone tunnel during core decompression of the femur (n = 12 rabbits) after the induction of SAON, and tissue regeneration was evaluated by micro-computed tomography and histologic analyses at 12 weeks postoperation. RESULTS In vitro, there were no significant differences in the bioactivity or ability to undergo osteogenic differentiation between fresh BMMNCs and cryopreserved BMMNCs, but after SAON induction, both features were decreased significantly. In vivo, the bone mineral density, ratio of bone volume to total volume of bone, and volume and diameter of neovascularization within the bone tunnel were significantly higher in the BMMNC-treated group compared to the nontreated control group at 12 weeks postoperation. CONCLUSION Cryopreserved BMMNCs maintained their bioactivity and promoted bone regeneration and neovascularization within the bone tunnel after core decompression in this rabbit model of SAON.
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Affiliation(s)
- Xin-Hui Xie
- The Chinese University of Hong Kong, Hong Kong, China
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Zhang S, Mao T, Chen F. Influence of platelet-rich plasma on ectopic bone formation of bone marrow stromal cells in porous coral. Int J Oral Maxillofac Surg 2011; 40:961-5. [DOI: 10.1016/j.ijom.2011.02.037] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2008] [Revised: 12/03/2010] [Accepted: 02/01/2011] [Indexed: 10/18/2022]
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Ward BB, Brown SE, Krebsbach PH. Bioengineering strategies for regeneration of craniofacial bone: a review of emerging technologies. Oral Dis 2010; 16:709-16. [PMID: 20534013 DOI: 10.1111/j.1601-0825.2010.01682.x] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Although advances in surgical techniques and bone grafting have significantly improved the functional and cosmetic restoration of craniofacial structures lost because of trauma or disease, there are still significant limitations in our ability to regenerate these tissues. The regeneration of oral and craniofacial tissues presents a formidable challenge that requires synthesis of basic science, clinical science, and engineering technology. Tissue engineering is an interdisciplinary field of study that addresses this challenge by applying the principles of engineering to biology and medicine toward the development of biological substitutes that restore, maintain, and improve normal function. This review will explore the impact of biomaterials design, stem cell biology and gene therapy on craniofacial tissue engineering.
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Affiliation(s)
- B B Ward
- Department of Oral and Maxillofacial Surgery Biologic and Materials Sciences, School of Dentistry, University of Michigan Ann Arbor, MI, USA
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Scherberich A, Müller AM, Schäfer DJ, Banfi A, Martin I. Adipose tissue-derived progenitors for engineering osteogenic and vasculogenic grafts. J Cell Physiol 2010; 225:348-53. [PMID: 20626000 DOI: 10.1002/jcp.22313] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The current need for bone grafts in orthopedic and reconstructive surgery cannot be satisfied by autologous tissue transplant due to its limited availability and significant associated morbidity. Tissue engineering approaches could supply sufficient amounts of bone substitutes by exploiting the ability to harvest autologous osteogenic progenitors associated with suitable porous materials. However, the generation of clinically relevant-sized constructs is critically hampered by limited vascularization, with consequent engraftment and survival only of a thin outer shell, upon in vivo implantation. To overcome this limitation, different non-mutually exclusive approaches have recently been developed to promote or accelerate graft vascularization, from angiogenic growth factor gene delivery to surgical pre-vascularization of the construct before implantation. A simple, promising strategy involves the co-culture of vasculogenic cells to form an intrinsic vascular network inside the graft in vitro, which can rapidly anastomose with the host blood vessels in vivo. Recent data have shown that adipose tissue-derived stromal vascular fraction (SVF) may provide an efficient, convenient, and autologous source for both osteogenic and endothelial cells. When SVF progenitors were cultured in appropriate bioreactor systems and ectopically implanted, a functional vascular network connected to the host was formed concomitantly to bone formation. Future studies should aim at demonstrating that this approach effectively supports survival of scaled up cell-based bone grafts at an orthotopic site. The procedure should also be adapted to become compatible with an intra-operative timeline and complemented with the definition of suitable potency markers, to facilitate its development into a simplified, reproducible, and cost-effective clinical treatment.
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Affiliation(s)
- Arnaud Scherberich
- Tissue Engineering, Department of Biomedicine, Basel University Hospital, Basel, Switzerland
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Xie XH, Wang XL, Zhang G, He YX, Wang XH, Liu Z, He K, Peng J, Leng Y, Qin L. Structural and degradation characteristics of an innovative porous PLGA/TCP scaffold incorporated with bioactive molecular icaritin. Biomed Mater 2010; 5:054109. [DOI: 10.1088/1748-6041/5/5/054109] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Teixeira S, Fernandes H, Leusink A, van Blitterswijk C, Ferraz MP, Monteiro FJ, de Boer J. In vivo evaluation of highly macroporous ceramic scaffolds for bone tissue engineering. J Biomed Mater Res A 2010; 93:567-75. [PMID: 19591232 DOI: 10.1002/jbm.a.32532] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
During the last decades, different materials of both natural and synthetic origin have been developed with the aim of inducing and controlling osteogenic differentiation of mesenchymal stem cells (MSCs). In order for that to happen, it is necessary that the material to be implanted obey a series of requirements, namely: osteoconduction, biocompatibility, and biodegradability. Additionally, they must be low-priced, easy to produce, shape, and store. Hydroxyapatite (HA) is a well known ceramic with a composition similar to the mineral component of bone and is highly biocompatible and easy to obtain and/or process. On the other hand, collagen is the main structural protein present in the human body and bone. In this study, a polymer replication method was applied and a highly porous HA scaffold was produced. Collagen was later incorporated to improve the biological properties of the scaffold while resembling the bone composition. The scaffolds were characterized by means of scanning electron microscopy, Fourier transform infrared spectroscopy and energy dispersive spectroscopy. In vitro and in vivo testing was performed in all scaffolds produced. The goal of this study was to evaluate the in vivo osteogenic potential of MSCs from two different species seeded on the different HA basedporous scaffolds with collagen type I. The resultsindicate that all scaffolds exhibit relevant bone formation, being more prominent in the case of the HA scaffolds.
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Affiliation(s)
- S Teixeira
- INEB-Instituto de Engenharia Biomédica, Laboratório de Biomaterials, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal.
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Fröhlich M, Grayson WL, Marolt D, Gimble JM, Kregar-Velikonja N, Vunjak-Novakovic G. Bone grafts engineered from human adipose-derived stem cells in perfusion bioreactor culture. Tissue Eng Part A 2010; 16:179-89. [PMID: 19678762 DOI: 10.1089/ten.tea.2009.0164] [Citation(s) in RCA: 142] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
We report engineering of half-centimeter-sized bone constructs created in vitro using human adipose-derived stem cells (hASCs), decellularized bone scaffolds, and perfusion bioreactors. The hASCs are easily accessible, can be used in an autologous fashion, are rapidly expanded in culture, and are capable of osteogenic differentiation. hASCs from four donors were characterized for their osteogenic capacity, and one representative cell population was used for tissue engineering experiments. Culture-expanded hASCs were seeded on fully decellularized native bone scaffolds (4 mm diameter x 4 mm thick), providing the necessary structural and mechanical environment for osteogenic differentiation, and cultured in bioreactors with medium perfusion. The interstitial flow velocity was set to a level necessary to maintain cell viability and function throughout the construct volume (400 microm/s), via enhanced mass transport. After 5 weeks of cultivation, the addition of osteogenic supplements (dexamethasone, sodium-beta-glycerophosphate, and ascorbic acid-2-phosphate) to culture medium significantly increased the construct cellularity and the amounts of bone matrix components (collagen, bone sialoprotein, and bone osteopontin). Medium perfusion markedly improved the distribution of cells and bone matrix in engineered constructs. In summary, a combination of hASCs, decellularized bone scaffold, perfusion culture, and osteogenic supplements resulted in the formation of compact and viable bone tissue constructs.
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Affiliation(s)
- Mirjam Fröhlich
- Department of Biomedical Engineering, Columbia University, New York, New York, USA
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Hao W, Dong J, Jiang M, Wu J, Cui F, Zhou D. Enhanced bone formation in large segmental radial defects by combining adipose-derived stem cells expressing bone morphogenetic protein 2 with nHA/RHLC/PLA scaffold. INTERNATIONAL ORTHOPAEDICS 2010; 34:1341-9. [PMID: 20140671 DOI: 10.1007/s00264-009-0946-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2009] [Revised: 12/14/2009] [Accepted: 12/20/2009] [Indexed: 12/22/2022]
Abstract
In this study, rabbit adipose-derived stem cells (rASCs) were isolated, cultured in vitro, and transfected with recombinant adenovirus vector containing human bone morphogenetic protein 2 (Ad-hBMP2). These cells were combined with a nano-hydroxyapatite/recombinant human-like collagen/poly(lactic acid) scaffold (nHA/RHLC/PLA) to fabricate a new biocomposite (hBMP2/rASCs-nHA/RHLC/PLA, group 1) and cultured in osteogenic medium. Non-transfected rASCs mixed with nHA/RHLC/PLA (rASCs-nHA/RHLC/PLA, group 2) and nHA/RHLC/PLA scaffold alone (group 3) served as controls. Scanning electron microscope (SEM) demonstrated integration of rASCs with the nHA/RHLC/PLA scaffold. Quantitative real-time RT-PCR analyses of collagen I, osteonectin, and osteopontin cDNA expression indicated that the osteogenic potency of rASCs was enhanced by transfection with Ad-hBMP2. After in vitro culture for seven days, three groups were implanted into 15-mm length critical-sized segmental radial defects in rabbits. After 12 weeks, radiographic and histological analyses were performed. In group 1, the medullary cavity was recanalised, bone was rebuilt and moulding was finished, the bone contour had begun to remodel and scaffold was degraded completely. In contrast, bone defects were not repaired in groups 2 or 3. Furthermore, the scaffold degradation rate in group 1 was significantly higher than in groups 2 or 3. In summary, after transduction with Ad-hBMP2, the osteogenesis of rASCs was enhanced; a new biocomposite created with these cells induced repair of a critical bone defect in vivo in a relatively short time.
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Affiliation(s)
- Wei Hao
- Department of Orthopaedics & Traumatology, Provincial Hospital affiliated to Shandong University, Ji'nan, People's Republic of China
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Hao W, Pang L, Jiang M, Lv R, Xiong Z, Hu YY. Skeletal repair in rabbits using a novel biomimetic composite based on adipose-derived stem cells encapsulated in collagen I gel with PLGA-beta-TCP scaffold. J Orthop Res 2010; 28:252-7. [PMID: 19688871 DOI: 10.1002/jor.20969] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
In bone tissue engineering, the cell distribution mode in the scaffold may affect in vivo osteogenesis. Therefore, we fabricated a novel biomimetic construct based on a combination of rabbit adipose-derived stem cells (rASCs) encapsulated in collagen I gel with a PLGA-beta-TCP scaffold (rASCs-COL/PLGA-beta-TCP, group A), the combination of rASCs and PLGA-beta-TCP (rASCs/PLGA-beta-TCP, group B), the combination of collagen I gel and PLGA-beta-TCP (COL/PLGA-beta-TCP, group C), and PLGA-beta-TCP scaffold (group D). The composites were implanted into a 15-mm length critical-sized segmental radial defect. The results were assessed by histology, radiographs, bone mineral density (BMD), and mechanical testing. After 24 weeks, the medullary cavity recanalized, bone was rebuilt, and molding finished, the bone contour remodeled smoothly and the scaffold degraded completely in group A. The BMDs and mechanical properties were similar to normal. However, the bone defect remained unrepaired in groups B, C, and D. Moreover, the scaffold degradation rate in group A was significantly higher than the other groups. Thus, enhanced in vivo osteogenesis of rASCs wrapped in collagen I gel combined with PLGA-beta-TCP was achieved, and the bone defect was repaired. We hope this study provides new insights into ASCs-based bone tissue engineering.
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Affiliation(s)
- Wei Hao
- Department of Orthopaedics & Traumatology, Provincial Hospital Affiliated with Shandong University, Ji'nan 250021, Shandong, People's Republic of China.
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Marino G, Rosso F, Cafiero G, Tortora C, Moraci M, Barbarisi M, Barbarisi A. Beta-tricalcium phosphate 3D scaffold promote alone osteogenic differentiation of human adipose stem cells: in vitro study. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2010; 21:353-363. [PMID: 19655233 DOI: 10.1007/s10856-009-3840-z] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2009] [Accepted: 07/24/2009] [Indexed: 05/28/2023]
Abstract
Human adipose tissues surgically resected from the subcutaneous abdominal region were enzymatically processed to obtain Human Adipose Stem cells (fibroblast-like adipose tissue-derived stromal cells-ADSC-FL) that were immunophenotypically characterized using a panel of mesenchymal markers by flow cytometry. The formation of new hydroxyapatite crystals in culture dishes, by differentiating cells, further demonstrate the osteogenic potential of purified cells. The aim of this study was to evaluate the osteogenic differentiation potential of ADSC-FL seeded onto a porous beta-tricalcium phosphate (beta-TCP) matrix. ADSC-FL was cultured on the beta-TCP matrix in medium with or without osteogenic differentiation additives. Time-dependent cell differentiation was monitored using osteogenic markers such as alkaline phosphatase (activity assay), osteocalcin and ostopontin (ELISA method) expression. Our results reveal that beta-TCP triggers the differentiation of ADSC-FL toward an osteoblastic phenotype irrespective of whether the cells are grown in a proliferative or a differentiative medium. Hence, a beta-TCP matrix is sufficient to promote osteoblastic differentiation of ADSC-FL. However, in proliferative medium, alkaline phosphatase activity was detected at lower level respect to differentiative medium and osteocalcin and osteopontin showed an expression delay in cells cultured in proliferative medium respect to differentiative one. Moreover, we observed an increase in FAK phosphorylation at level of tyrosine residue in position 397 (Western-blot) that indicates a good cell adhesion to beta-TCP scaffold. In conclusion, our paper demonstrates that a three-dimensional beta-TCP scaffold in vitro triggers on its own the differentiation of ADSC-FL toward an osteoblastic phenotype without the need to use differentiative media.
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Affiliation(s)
- Gerardo Marino
- Department of Anaesthesiological, Surgical and Emergency Sciences, Second University of Naples, Naples, Italy.
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Reichert JC, Heymer A, Berner A, Eulert J, Nöth U. Fabrication of polycaprolactone collagen hydrogel constructs seeded with mesenchymal stem cells for bone regeneration. Biomed Mater 2009; 4:065001. [DOI: 10.1088/1748-6041/4/6/065001] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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40
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Weinand C, Gupta R, Weinberg E, Madisch I, Neville CM, Jupiter JB, Vacanti JP. Toward Regenerating a Human ThumbIn Situ. Tissue Eng Part A 2009; 15:2605-15. [DOI: 10.1089/ten.tea.2008.0467] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Christian Weinand
- Laboratory for Tissue Engineering and Organ Fabrication, Harvard Medical School, Massachusetts General Hospital, Boston, Massachusetts
| | - Rajiv Gupta
- Department of Radiology, Harvard Medical School, Massachusetts General Hospital, Charlestown, Massachusetts
| | - Eli Weinberg
- Massachusetts Institute of Technology, Cambridge, Massachusetts
| | - Ijad Madisch
- Department of Radiology, Harvard Medical School, Massachusetts General Hospital, Charlestown, Massachusetts
| | - Craig M. Neville
- Laboratory for Tissue Engineering and Organ Fabrication, Harvard Medical School, Massachusetts General Hospital, Boston, Massachusetts
| | - Jesse B. Jupiter
- Hand and Upper Extremity Service, Harvard Medical School, Massachusetts General Hospital, Boston, Massachusetts
| | - Joseph P. Vacanti
- Laboratory for Tissue Engineering and Organ Fabrication, Harvard Medical School, Massachusetts General Hospital, Boston, Massachusetts
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Ma X, Wu X, Hu Y, Xiong Z, Lv R, Wang J, Li D, Yan Y. Intervertebral Spinal Fusion Using a RP-based PLGA/TCP/bBMP Biomimetic Grafting Material. J BIOACT COMPAT POL 2009. [DOI: 10.1177/0883911509103830] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Three-dimensional highly porous poly(DL-lactic-co-glycolic acid)/tricalcium phosphate (PLGA/TCP) scaffolds were synthesized via a rapid prototyping (RP) technique. Bovine bone morphogenetic protein (bBMP) was loaded into the biopolymer scaffolds (PLGA/TCP/bBMP). Both the PLGA/TCP scaffolds and the PLGA/TCP/bBMP composites were evaluated by scanning electron microscopy. Lumbar intervertebral body fusion at L2~3 and L4~5 levels were performed on 15 goats using one of the following graft materials: RP synthesized PLGA/TCP scaffolds (group A), PLGA/TCP/bBMP composites (group B), and autogenous iliac bone graft (group C). All animals were sacrificed 24 weeks after surgery and the spine fusions evaluated by manual palpation tests, histological analyses, and radiography. In group A, the histological analyses showed that the PLGA/TCP scaffolds were biocompatible and biodegradable; however, no new bone was found. In group B, highly cellular bone marrow between the new trabecular bone was present in the fusion mass. In group C, there was a lesser amount of new bone. Twenty-four weeks after surgery, the fusion rate of lumbar intervertebral body fusion in group A, B, and C was 10% (1/10), 80% (8/10), and 50% (5/10), respectively. The fusion rate was significantly higher in group B compared with groups of A and C (p<0.01). Based on these results, extracted bBMP can be loaded in vitro into RP-based highly porous structural PLGA/TCP scaffolds to fabricate new graft composites that appear to be more effective for intervertebral spinal fusions. This biomimetic artificial grafting material holds promise as a tool for spine surgery.
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Affiliation(s)
- Xing Ma
- Department of Orthopaedics, The First Affiliated Hospital of Medical School Xi'an Jiaotong University, Xi'an 710061, PR China
- Institute of Orthopaedic Surgery & Department of Orthopaedics Xijing Hospital, The Fourth Military Medical University Xi'an 710032, PR China
| | - Xiaoming Wu
- Department of Biomedical Engineering, The Fourth Military Medical University, Xi'an 710032, PR China
| | - Yunyu Hu
- Institute of Orthopaedic Surgery & Department of Orthopaedics Xijing Hospital, The Fourth Military Medical University Xi'an 710032, PR China
| | - Zhuo Xiong
- Department of Mechanical Engineering, Tsinghua University Beijing 100084, PR China
| | - Rong Lv
- Institute of Orthopaedic Surgery & Department of Orthopaedics Xijing Hospital, The Fourth Military Medical University Xi'an 710032, PR China
| | - Jun Wang
- Institute of Orthopaedic Surgery & Department of Orthopaedics Xijing Hospital, The Fourth Military Medical University Xi'an 710032, PR China
| | - Dan Li
- Institute of Orthopaedic Surgery & Department of Orthopaedics Xijing Hospital, The Fourth Military Medical University Xi'an 710032, PR China
| | - Yongnian Yan
- Department of Mechanical Engineering, Tsinghua University Beijing 100084, PR China
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Current world literature. Curr Opin Organ Transplant 2009; 14:103-11. [PMID: 19337155 DOI: 10.1097/mot.0b013e328323ad31] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Zhu Y, Liu T, Song K, Jiang B, Ma X, Cui Z. Collagen-chitosan polymer as a scaffold for the proliferation of human adipose tissue-derived stem cells. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2009; 20:799-808. [PMID: 19020954 DOI: 10.1007/s10856-008-3636-6] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2008] [Accepted: 10/16/2008] [Indexed: 05/27/2023]
Abstract
The architecture and biomaterial are vital for three-dimensional culture of cells in scaffolds, so collagen-chitosan scaffolds suitable for the proliferation of adipose tissue-derived stem cells (ADSCs) were fabricated in this study. Chitosan was fully mixed with collagen with different volume ratio and cross-linked. The microstructure, pore size, bibulous ability, water content, interval porosity, enzyme degradation and affinity were examined before and after cross-linking. During ADSCs cultured in scaffold, the viability and metabolic rates were measured. After 14 days, the surface markers, specific transcription factors and multi-differentiation potential were assayed to identify the stemness of expanded cells. According to the pore size, bibulous ability, interval porosity, degradation rate and affinity of the scaffold, we chose cross-linked scaffolds of 7:3 material ratio as a better scaffold for ADSCs proliferation, and ADSCs could be expanded by more than 20 times. All expanded cells still maintained stem cell characteristics and pluripotency. So our developed collagen-chitosan scaffolds can promote ADSCs adhesion, expansion, and maintain pluripotency.
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Affiliation(s)
- Yanxia Zhu
- Dalian R&D Center for Stem Cell and Tissue Engineering, Dalian University of Technology, Liaoning, Dalian, 116024, China
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